UNIX for Dummies Questions & Answers

Hello:

Executing following script i'm getting error:

1=1+1: 0403-058 Assignment requires an lvalue.

It's not assuming the counter but i don't know why.
Some hint?

Thank you very much in advance.

#!/bin/ksh

<path>/tiempos.txt

num_exe=1
TIEMPOS=<path>/tiempos.txt

while [[ $num_exe < 4 ]]
do
echo "------------------ Ejecución "$NUM_EXE"ª ------------------------" >> $TIEMPOS
db2 "values (current timestamp)" >> $TIEMPOS

echo "------------------ Ejecución "$NUM_EXE"ª ------------------------"

let $num_exe=$num_exe+1
db2 "values (current timestamp)" >> $TIEMPOS

echo "------------------ xxx -------------------------"

done

exit

Code:

let $num_exe=$num_exe+1

Must be:

Code:

let "num_exe = num_exe + 1"

or:

Code:

let num_exe=num_exe+1

Regards

Thank you very much.

Regards